Incandescent gas-burner



(No Model.)

H. J. BELL.

INGANDESGBNT GAS BURNER. No. 396,260. Patented Jan. 15, 1889.

' Y I n eidar Wgw ,Jflzrazalefjfizl l i W UNITED STATES A ATENT OFFICE.

HAROLD J. BELL, OE GLOUCESTER CITY, NEW JERSEY, ASSIGN OR TO THE IVELSBACII INCANDESCENT GAS LIGHT COMPANY, OF NEIV JERSEY.

INCANDESCENT GAS=BURNER.

SPECIFICATION forming part of Letters Patent No. 396,260, dated January 15, 1889. Application filed June 21, 1888. Serial No. 277,715. (No model.)

To all whom it may concern.-

Be it known that I, HAROLD J. BELL, a citizen of the United States, residing at Gloucester City, in the county of Camden and State of New Jersey, have invented new and useful Im provements in Incandescent Gas-Burners, of which the following is a specificaion.

My invention consists in an incandescent gas burner comprising a burnerbase or t-himble screw-threaded for attachment to a gasflxture and having a flaring upper end provided with a horizontal series of air-inlets, a rotatable shell spun around said base or thimble and projecting above the same, the

lower portion of said shell being provided withahorizontal series of air-inlets adapted to register with and control the air-inlets of the burner-base, and a combined burner and gallery supported 011 said shell.

The invention will be hereinafter described in detail, and then particularly pointed out in the claim.

I In the annexed drawings, Figure 1 is a vertical section of my improved incandescent gas- 2 5 burner. Fig. 2 is an elevation of the burnerbase and attached air-regulating shell. Fig. 3 is a bottom view of the same.

The numeral 1 designates a burner-base, which, as shown, is internally svrew-tln-eaded for attachment to a gas-fixture. The upper portion of this burner-base or thimble is preferably made flaring, and in this upper portion is formed a series of air-inlets, 2, arranged in a horizontally annular line. ith- 3 5 in the base 1, beneath the air-inlets 2, is supported a thin perforated metal disk, 0, for dividing the gas, so as to facilitate its thorough mixture with the air and to maintain its full pressure until it comes in contact with the air admitted through said inlets.

Closely surrounding the base 1 and extending above the same is a rotatable metal shell, 4, ha\'*ing a horizontal series of air-inlets, 5, adapted to register with and control 5 the air-inlets of the burner-base. Above these air-inlets 5 a milled head or knurl, 6, is formed on the shell 4, whereby it can be conveniently grasped and rotated, so as to cause the inlets 2 and 5 to be opened or closed more or less, as required, and thereby regulate the admission of air to the burner. The total diameter of each series of air-inlets being less than half the circumference of the line upon which said holes or inlets are drilled,

it is obvious that the shell 4 can be adjusted to a position where the two series of inlets will not register, thereby cutting off all access of air, if desired.

The adjustable shell 4 is extended upward and made to project above the base 1 a sufii- 6o cient distance to afford a firm support for a combined burner-tube, 7, and gallery 8, and, if desired, the upper end of said shell 4 may be contracted, as shown. The burner-tube 7 supports a wire-gauze diaphragm, 9, and a burner-tip, 10, which may be of any suitable construction.

The gallery Ssupports an annular deflector, 11, and a socket, 12, the latter being intended to receive the usual rod or wire from which the mantle or other incandescent device is suspended. The skirt of the mantle is received and protected by the deflector 11, and the glass chimney, ordinarily used, is supported by a flange, 13, on the lower end of said deflector. This flange and also the body ofthe gallery are perforated to permit the passage of air.

The operation and advantages of this construction will be readily understood; and it will be seen that a simple and convenient means is afforded for regulating the admission of air to the burner.

I am aware of the British patents to James Lewis, No. 105,0f 1883, and No. 3,984, of 1884, and do not claim the construction shown therein.

IVhat I claim is The combination of. the burner-base 1, having a flaring upper end provided with a series of air-inlets, 2, the rotatable shell 4, spun around said base and projecting above the same, the lower portion of said shell being provided with a series of air-inlets corresponding with the air-inlets of the base, and a combined burner-tube and gallery supported on and closely surrounding the upper portion of the shell 4 above the air-inlets, substantially as described.

In testimony whereof Iaffix my signature in Io o presence of two witnesses.

HAROLD J. BELL.

itnesses: L. SIMPSON, MORRIS R. BooKINs. 

